<template>
    <div class="login_container">
        <div class="login_box">
            <!-- 头像区 -->
            <div class="avatar_box">
                <img src="../assets/logo.png" alt="" srcset="">
            </div>
            <!-- 登录表单区 -->
            <el-form ref="loginFormRef" class="login_form" label-width="0" :model="loginForm" :rules="loginFormRules">
                <!-- 用户名 -->
                <el-form-item prop="username">
                    <el-input prefix-icon="iconfont icon-user" v-model="loginForm.username"></el-input>
                </el-form-item>
                <!-- 密码 -->
                <el-form-item prop="password">
                    <el-input prefix-icon="iconfont icon-3702mima" v-model="loginForm.password" type="password">
                    </el-input>
                </el-form-item>
                <!-- 按钮 -->
                <el-from-item class="btns">
                    <el-button type="primary" @click=login>登录</el-button>
                    <el-button type="info" @click="loginReset">重置</el-button>
                </el-from-item>
            </el-form>
        </div>
    </div>
</template>
<script>
    export default {
        data() {
            return {
                // 登录数据表单绑定对象
                loginForm: {
                    username: 'admin',
                    password: '123456'
                },
                loginFormRules: {
                    username: [{
                        required: true,
                        message: '请输入用户名',
                        trigger: 'blur'
                    }, //失去焦点出发
                    {
                        min: 3,
                        max: 10,
                        message: '长度在 3 到 10 个字符',
                        trigger: 'blur'
                    }
                    ],
                    password: [{
                        required: true,
                        message: '请输入用密码',
                        trigger: 'blur'
                    }, //失去焦点出发
                    {
                        min: 6,
                        max: 15,
                        message: '长度在 6 到 15 个字符',
                        trigger: 'blur'
                    }
                    ]
                }
            }
        },
        methods: {
            loginReset() {
                this.$refs.loginFormRef.resetFields();
            },
            login() {
                this.$refs.loginFormRef.validate(async valid => {
                    if (!valid) return;
                    const { data: rst } = await this.$http.post('login', this.loginForm);
                    if (rst.meta.status !== 200) return this.$message.error('登录失败');
                    this.$message({
                        showClose: true,
                        message: '登录成功',
                        type: 'success'
                    });
                    console.log(rst);
                    window.sessionStorage.setItem('token', rst.data.token);
                    this.$router.push('/home')
                });
            }
        },
    }
</script>

<!-- scoped当前组件生效 -->
<!-- <style lang="less" scoped> -->
<style lang="less" scoped>
    .login_container {
        background-color: #2b4b6b;
        height: 100%;
        color: orange;
    }

    el-input {
        padding-left: 20px;
        margin-left: 50px;
    }

    .login_box {
        width: 450px;
        height: 300px;
        background-color: #fff;
        border-radius: 3px;
        position: absolute;
        left: 50%;
        top: 50%;
        transform: translate(-50%, -50%);
    }

    .avatar_box {
        position: absolute;
        left: 50%;
        transform: translate(-50%, -50%);
        height: 130px;
        width: 130px;
        border: 1px solid #eee;
        background-color: #fff;
        border-radius: 50%;
        padding: 10px;
        box-shadow: 0 0 10px #ddd;

        img {
            width: 100%;
            height: 100%;
            border-radius: 50%;
            background-color: #eee;
        }
    }

    .btns {
        display: flex;
        justify-content: flex-end;
    }

    .login_form {
        position: absolute;
        bottom: 20px;
        width: 100%;
        padding: 0 20px;
    }
</style>